1. Minimum line width (L) and line spacing (S) are 3mil.
2. The minimum hole diameter of PTH hole is 0.2mm, and the minimum hole ring is 0.15mm.
3. The minimum distance from the line (punching) edge is 0.2mm.
4. Line inflection (including pads and wires), should avoid right angle design, try to use circular arc connection to reduce stress concentration and improve the number of bending resistance.
5. in order to facilitate the design of the cover film opening window, try to avoid the line between the pads. When necessary, partial or even most of the rewiring can be carried out.
6. for double panel lines, should avoid the upper and lower lines overlap, need to interleave design.
7. PTH holes need to be more than 2mm from the folded line position.
8. The line direction should be as vertical as possible or at an angle of 45 degree to the fold line.
9. in the folding line position should try to avoid changes in line width, as far as possible to make the line spacing distribution uniform.
10. PTH hole should be more than 2mm from the edge of the reinforcement plate, if the PTH hole is inside the reinforcement plate, the edge of the hole should be more than 0.5mm from the edge of the reinforcement plate.
11. PTH hole should be more than 2mm from the position of folding line.
12. The line direction should be perpendicular to the fold line or at an angle of 45 degree as far as possible.
13. The change of line width should be avoided as much as possible in the fold line position, and try to make the line spacing evenly distributed.
14. PTH hole should be more than 2mm from the edge of the reinforcement plate, if the PTH hole is inside the reinforcement plate, the edge of the hole should be more than 0.5mm from the edge of the reinforcement plate.
Zhejiang NeoDen Technology Co., Ltd. has been manufacturing and exporting various small pick and place machines since 2010. Taking advantage of our own rich experienced RD, well trained production, NeoDen wins great reputation from the world wide customers.
We believe that great people and partners make NeoDen a great company and that our commitment to Innovation, diversity and Sustainability ensures that SMT automation is accessible to every hobbyist everywhere.